The Relationship Between the Hardness And Wear Resistance for Tungsten Carbide

Wear resistance refers to the ability to resist friction, and the tungsten carbide, a very widely used material, has high wear resistance. What is the relationship between the hardness and wear resistance of tungsten carbide?

Generally, the higher the hardness is, the better the wear resistance. The smaller the particles of the tungsten steel have, the higher the hardness and the better wear resistance. The wear resistance of the cemented carbide is related to the contained proportion of titanium carbide and cobalt carbide. It will be higher hardness and better wear resistance, with more titanium carbide and less cobalt. 

The tungsten carbide can reach 86 HRA to 94 HRA at room temperature, equivalent to 69 to 81HRC. High hardness can be maintained at 900 to 1000 ° C with eaxcellent wear resistance. The cemented carbide is made by a series of refractory metal carbides such as WC, TiC, NBC, and Vc with a powder metallurgical method as a binder. Compared with the superhard material, it has high toughness. Compared to high-speed steel, it has high hardness and wears resistance.

Hardness is an important performance indicator for measuring metal materials, which is the ability of a material to resist elastic deformation, plastic deformation, and damage. If other factors have not been considered, the relationship between hardness and wear resistance is that the higher the hardness, the better the wear resistance. The same material has different surface treatments, and the hardness is proportional to wear resistance.

However, the material with the best wear resistance may not have a high hardness. For example, the hardness of cast iron which is the common wear-resistant material is not high.

The high hardness and excellent wear resistance are the basic requirements. According to the special production process of carbide parts, ZZBETTER adopts the professional HIP sintering process. When the blank is sintered into shape, the internal thread is semi-precision molding, which is convenient for subsequent finishing threaded dimensional accuracy. This is very powerful for tungsten carbide blank sintering and precisely controls the dimensional accuracy of the carbide wear parts.

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